[A word of warning: USBView works on WinXP and will show both high and low speed
devices. It will only show the low speed devices on Win2K]. USBView
is an alternative way of looking at the USB bus and can help to see if the
devices are appearing on the bus as expected and communicating properly.

At the end of this page is a screen shot of the
USBView.exe utility when a
dc3000 is connected to a PC. It is a shows a fairly standard 2-port PCMCIA/Cardbus card
based on an ALi chipset installed in a laptop. You can see a dc3000 connected to
Port 1 of the USB card. Please note that the Movie Writers will show up as 3
devices, a Generic USB hub (which resides inside the Movie Writer), a USB Mass Storage
Device (the DVD drive), and the HP DVD Movie Writer (which is the video
capture device). You may find that with your dc3000, the Mass Storage
Device is on port 2 and the HP DVD Movie Writer dc3000 is on port 1.
Also, the name of the capture device may state HP DVD Movie Writer dc3000,
HP DVD Movie Writer dc3000/dc4000, or simply HP DVD Movie Writer in the
case of the dc5000.

This USBView Screenshot of a laptop also has a built-in Intel hub, as well as a Via-based card in the
docking station so that's why there are so many USB devices that show up in the
screenshot.

You might be curious how the 2-port PCMCIA/Cardbus ALi-based USB 2.0 card shows
up as 12 devices. The reason for this is that the ALi chip that is used in
the card can actually control 6 USB ports even though it's only hooked up to 2
physical ports. There are two sets of drivers for
each port, one set for the high speed devices (i.e., 480 Mbps), called the EnhancedPCI to USB Host Controller, and another set
for the lower speed devices (i.e., 1.5 or 12 Mbps) which will show up as
Openor Universal Host Controllers. The low
speed driver is shared between each pair of ports so you'll see three of them
while the high speed driver handles all 6 ports.

If you put a USB 2.0 card in your computer but can only see the 'Open'
or 'Universal' Host Controllers, it could be an indication that
you don't have any high speed (i.e., 480 Mbps) EnhancedHost
Controller drivers installed. These drivers come as part of
the latest service packs on Win2K and WinXP. So you should make sure that
you are running the latest service packs.

To check which service pack you have, right click on the My Computer icon and
select Properties. The OS and Service Pack will appear under the
'General' tab. Make sure that Service Pack 1 is installed if you're running XP
and Service Pack 4 if
you're running Win2K. If not, go to Windows Update in
the Start-> Help and Support menu and download it for free from Microsoft. WinXP
may warn you if you plug the DVD Movie Writer into
a bus that is running at low or full speed provided you have Service Pack 1
installed, but Win2K will not give you any warning regardless of the service
pack level.

To test if your interface is running at high speed, measure the time it takes
to backup some files to a DVD disk with RecordNow using the DVD+RW media that
came with the HP DVD Movie Writer. It should take less than 30 minutes to
write a full 2.4x DVD+RW disk. If it takes much longer, then it's possible your
interface isn't operating at high speed. Please make sure to disable the
'verify data after write' option in RecordNow while running this test.